Receptacles – Closures – With closure opening arrangements for means
Patent
1976-05-10
1978-08-08
Hart, Ro E.
Receptacles
Closures
With closure opening arrangements for means
220367, 220DIG27, B65D 1700
Patent
active
041051335
ABSTRACT:
A sheet metal container wall or end closure is provided which includes a weakening line in the sheet metal and a rib formed across the weakening line to facilitate rupture of the residual metal in the weakening line. Such container wall may also have a hollow button formed in it with the weakening line and rib formed in the button whereby flexing of the button stresses the rib and weakening line to initiate rupture of the residual metal in the weakening line.
REFERENCES:
patent: 1098444 (1914-06-01), Ingalls
patent: 1359651 (1920-11-01), Andrews
patent: 1743283 (1930-01-01), Porges
patent: 3227304 (1966-01-01), Asbury
patent: 3229847 (1966-01-01), Fox, Jr.
patent: 3246791 (1966-04-01), Asbury
patent: 3355058 (1967-11-01), Asbury
patent: 3416698 (1968-12-01), Arfert
patent: 3720348 (1973-03-01), Jakobsen
patent: 3779417 (1973-12-01), Klein
patent: 3794206 (1974-02-01), De Line
Clawson Robert G.
La Barge Robert L.
Aluminum Company of America
Brownlee David W.
Hart Ro E.
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